Kiehl's Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum Versus Dr. Dennis Gross Skincare Hyaluronic Marine Hydration Booster

Kiehl's Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum Versus Dr. Dennis Gross Skincare Hyaluronic Marine Hydration Booster Detailed comparison of Kiehl's Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum versus Dr. Dennis Gross Skincare Hyaluronic Marine Hydration Booster. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Sodium Hyaluronate and Saccharide Isomerate to hydrate skin and strengthen the skin barrier. Water Glycerin Sodium Hyaluronate Phenoxyethanol Chlorphenesin Tetrasodium Glutamate Diacetate Citric Acid Water, Glycerin, Sodium Hyaluronate, Phenoxyethanol, Chlorphenesin, Tetrasodium Glutamate Diacetate, Citric Acid Oenothera Biennis Flower/Leaf/Stem Extract Saccharide Isomerate Yucca Aloifolia Leaf/Root Extract Linoleic Acid Centella Asiatica Extract Cucumis Sativus Fruit Extract Ceramide AP Ceramide EOP Ceramide NP Citrullus Lanatus Fruit Extract Hydrolyzed Collagen Camellia Sinensis Leaf Extract Quercetin Caprylate Glycolic Acid Lactic Acid Chamomilla Recutita Flower Extract Glycine Soja Extract Retinol Tocopheryl Acetate Tocopherol Symphytum Officinale Leaf Extract Cocos Nucifera Fruit Juice Tetrapeptide-21 Copper PCA Sodium PCA Urea Bisabolol Leuconostoc/Radish Root Ferment Filtrate Linolenic Acid Acrylates/Carbamate Copolymer C13-14 Isoparaffin Phytosphingosine Zinc PCA Butylene Glycol Caprylic/Capric Triglyceride Laureth-7 Sodium Lauroyl Lactylate Octoxynol-9 Glyceryl Oleate Isosteareth-200 Linoleate Polysorbate 20 Carbomer Cholesterol Polyacrylamide Xanthan Gum Silica Dimethyl Silylate BHT Disodium EDTA Sodium Citrate Potassium Sorbate Sodium Benzoate Benzyl Salicylate Linalool Parfum Oenothera Biennis Flower/Leaf/Stem Extract, Water, Glycerin, Sodium Hyaluronate, Saccharide Isomerate, Yucca Aloifolia Leaf/Root Extract, Linoleic Acid, Centella Asiatica Extract, Cucumis Sativus Fruit Extract, Ceramide AP, Ceramide EOP, Ceramide NP, Citrullus Lanatus Fruit Extract, Hydrolyzed Collagen, Camellia Sinensis Leaf Extract, Quercetin Caprylate, Glycolic Acid, Lactic Acid, Chamomilla Recutita Flower Extract, Glycine Soja Extract, Retinol, Tocopheryl Acetate, Tocopherol, Symphytum Officinale Leaf Extract, Cocos Nucifera Fruit Juice, Tetrapeptide-21, Copper PCA, Sodium PCA, Urea, Bisabolol, Leuconostoc/Radish Root Ferment Filtrate, Linolenic Acid, Acrylates/Carbamate Copolymer, C13-14 Isoparaffin, Phytosphingosine, Zinc PCA, Butylene Glycol, Caprylic/Capric Triglyceride, Laureth-7, Sodium Lauroyl Lactylate, Octoxynol-9, Glyceryl Oleate, Isosteareth-200 Linoleate, Polysorbate 20, Carbomer, Cholesterol, Polyacrylamide, Xanthan Gum, Silica Dimethyl Silylate, BHT, Disodium EDTA, Citric Acid, Sodium Citrate, Potassium Sorbate, Phenoxyethanol, Sodium Benzoate, Benzyl Salicylate, Linalool, Parfum Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.